41 lines
960 B
Python
41 lines
960 B
Python
import os
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from datetime import datetime, timedelta
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if os.uname()[4].startswith("arm"):
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from sense_hat import SenseHat
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else:
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from sense_emu import SenseHat
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from .models import Temperature, Humidity, Pressure
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sense = SenseHat()
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def _round_to_half(value):
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return round(value * 2.0) / 2.0
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def get_temperature():
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return _round_to_half(sense.get_temperature())
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def get_pressure():
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return round(sense.get_pressure())
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def get_humidity():
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return round(sense.get_humidity())
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def values_to_db():
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time = datetime.now()
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Temperature.objects.create(value=get_temperature(), time=time)
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Humidity.objects.create(value=get_humidity(), time=time)
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Pressure.objects.create(value=get_pressure(), time=time)
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def clean_db():
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time = datetime.now() - timedelta(days=30)
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Temperature.objects.filter(time__lt=time).delete()
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Humidity.objects.filter(time__lt=time).delete()
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Pressure.objects.filter(time__lt=time).delete()
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